CN209810295U - Concave-convex zigzag double-roller - Google Patents
Concave-convex zigzag double-roller Download PDFInfo
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- CN209810295U CN209810295U CN201920503522.1U CN201920503522U CN209810295U CN 209810295 U CN209810295 U CN 209810295U CN 201920503522 U CN201920503522 U CN 201920503522U CN 209810295 U CN209810295 U CN 209810295U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The utility model discloses a two roller cylinders of unsmooth zigzag belongs to comminuted technology field. The utility model relates to a concave-convex zigzag double-roller, which comprises a big roller and a small roller which are parallel to each other and rotate oppositely; convex sawteeth and concave sawteeth which are in an axial parallel state are arranged on the roll surfaces of the large roll and the small roll in a staggered mode, and are respectively a convex sawtooth I, a concave sawtooth I, a convex sawtooth II and a concave sawtooth II; and an inclined included angle theta is formed between the convex sawteeth and the concave sawteeth and the central line of the double roller. The combined design of zigzag structure and the oblique contained angle theta on the two rollers guarantees that the mode that rubber between the two sawtooth of two roller operation in-process cuts smashes, and avoid the mode of traditional rub-grinding, make the rubber powder that obtains mainly with the graininess, moreover, compare in the mode that prior art rubber powder smashed rub-grinding, can also reduce the thermal production in the crushing process in the cutting process, guarantee that the temperature that produces can cool off fast, avoid some rubber powder overheated appearance desulfurization state, even take place oxidative degradation, play unexpected technological effect.
Description
Technical Field
The utility model relates to a tire crushing process field, more specifically say so and relate to a two roller drums of unsmooth zigzag.
Background
At present, the material milling machine is divided into two major types of double-roller milling machine and mill type milling machine, the double-roller milling machine is mainly used for milling of nonmetal materials such as plastics, rubber, tires and the like, wherein, the front roller is a polished circular arc groove surface, the rear roller is a polished sawtooth groove surface, the two rollers are made of chilled cast iron, the surface is hard and wear-resistant, the inside of the roller is hollow, cooling water circulation can be introduced according to the use requirement, the surface temperature of the roller is adjusted, the two rollers rotate relatively at different speeds, and the materials are pulled into the gap between the two rollers to be machined. For example, various waste rubbers are used as raw materials by waste rubber grinding mechanical equipment, and the waste rubbers are processed to produce rubber powder for recycling by adopting a principle of combining grinding and shearing under the action of high pressure; the basic principle of the millstone type flour mill is that the material is sheared and milled by the relative movement of two millstones, so as to achieve the purpose of crushing the material. The double-water cooling is adopted to effectively control the material crushing temperature, so that the ideal product quality is obtained.
Both double-roller type flour mills and millstone type flour mills have a problem that powder obtained after the powder is milled by the structure and the working principle of the double-roller type flour mills has fluffy strips and even has a partially desulfurized or carbonized state, which seriously affects the quality of the powder, and the problems of easy blockage and the like in the use of subsequent powder, such as the feeding of regenerated rubber, are caused.
Through retrieval, the Chinese patent publication number: CN107839111A, published: 2018, 3.27.8, a double-roller rubber pulverizer is disclosed, wherein a high-speed roller is installed in a case, a low-speed roller is arranged at the position adjacent to the high-speed roller, a roller gap is reserved between the two rollers, the outer surface of the high-speed roller and the outer surface of the low-speed roller are smooth rollers, the high-speed roller is operated by a high-speed motor and connected with a high-speed reducer through a coupler, the high-speed reducer is connected with the high-speed roller through a coupler, the low-speed roller is operated by a low-speed motor and connected with a low-speed reducer through a coupler, and the low-speed reducer is connected with the low-speed. The technical scheme adopts double rollers, motors are respectively and independently directly connected with a speed reducer, one roller with high rotating speed and the other roller with low rotating speed are respectively and independently and directly connected with the speed reducer by the motors without mutual interference, the two rollers rotate relatively, the fineness of rubber powder produced by the flour mill is 40-120 meshes, and therefore the requirements of high-elasticity rubber materials with different hardness, the product fineness and the production efficiency are met. In the scheme, the outer surface of the high-low rotating speed roller is a smooth roller, the contact area is large by adopting a rubbing mode, the prepared material has larger granularity, and the appearance is fluffy.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
Great to rubber crocus in-process granularity among the prior art, the fluffy problem of outward appearance, the utility model provides a two roller cylinders of unsmooth zigzag. The utility model discloses a slant setting of parallel state's protruding, concave sawtooth will be rubbed the mode of grinding and changed into the mode of sawtooth cutting, and the rubber powder that makes is anomalous granular rubber powder, and the fluffy state of outward appearance changes the sight greatly.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
a concave-convex zigzag double-roller comprises a large roller and a small roller which rotate oppositely in a parallel state; convex sawteeth and concave sawteeth which are in an axial parallel state are arranged on the roll surfaces of the large roll and the small roll in a staggered mode, and are respectively a convex sawtooth I, a concave sawtooth I, a convex sawtooth II and a concave sawtooth II; and an inclined included angle theta is formed between the convex sawteeth and the concave sawteeth and the central line of the double roller.
The combined design of zigzag structure and the oblique contained angle theta on the two rollers guarantees that the mode that rubber between the two sawtooth of two roller operation in-process cuts smashes, and avoids the mode of traditional rubbing with the hands and grinding, makes the rubber powder that obtains mainly with the graininess, moreover, compare in the mode that prior art rubber powder smashed the rubbing with the hands and grinds, can also reduce the thermal production in the crushing process in the cutting process, guarantee that the temperature that produces can cool off fast, avoid some rubber powder overheated appearance desulfurization state, play unexpected technological effect.
Furthermore, the convex sawteeth and the concave sawteeth are in one-to-one matching corresponding relation of the convex sawteeth I and the convex sawteeth II and the concave sawteeth I and the concave sawteeth II when the double rollers rotate, so that part of rubber powder is prevented from being cut by mistake in the cutting process, and the purpose of uniformly cutting the rubber powder is achieved.
Furthermore, concave sawtooth I and concave sawtooth II form the pressure-equalizing groove when two rollers rotate and cut the material, play the rubber powder of guaranteeing the sawtooth cutting and spill and reach the steady pressure effect after getting into the pressure-equalizing groove inside through the extrusion, avoid the material local to pile up the pressure too big and cause the powder intensification desulfurization, even oxidative degradation.
Further, the rotating speed ratio of the large roller to the small roller is (1-12): 1, under other conditions, such as certain conditions of roller diameter, oblique included angle theta and the like, the larger the rotation speed ratio is, the larger the heat generated by shearing is, the higher the efficiency of the cutting mode for grinding powder is, and the smaller the reverse rotation speed ratio is, the smaller the heat generated by shearing is, and the lower the efficiency of the cutting mode for grinding powder is; meanwhile, the larger the rotation speed ratio is, the larger the heat generated by shearing is, the larger the energy consumption of cooling loss through cooling water is, and the lower the utilization rate of the energy is; when the rotation speed ratio is lower, the grinding efficiency of the cutting mode is lower, the generation of rubber powder is too low, and even the rubber powder with the required granularity is difficult to generate; therefore, on the premise of ensuring the maximum productivity of the rubber powder with the required granularity, the rotating speed ratio is (1-12): 1, the heat generated by shearing can be controlled to the maximum extent; the front angles alpha of the convex sawteeth I and the convex sawteeth II in the rotating direction are smaller than the rear angles beta, and the effect is that the convex sawteeth I collide with the convex sawteeth II to generate shearing force.
Furthermore, the included angle theta is 5-20 degrees, and if the included angle theta is too small, the cutting edge is sharp, the strength is low, and the milling powder is easy to wear when being cut, so that the service life is short; the included angle theta is too large, the cutting edge is wider, the strength is higher, the colloidal particle cutting mode is even difficult to grind the colloidal powder to the required granularity when the colloidal particle is ground by the cutting mode, namely the grinding is difficult, the included angle theta is 5-20 degrees, and the requirements of service life and ground powder granularity can be considered; the oblique direction of convex sawtooth I and convex sawtooth II is unanimous, avoids cuting to deviate from, improves shearing efficiency.
Further, the diameter ratio of the large roller and the small roller is: (1.1-2.2): 1, shearing difference is formed, when the diameter ratio is too large, the service lives of the two rollers are greatly different, the efficiency of combined production is reduced, and when the diameter ratio is too small, tooth grooves are easily meshed to influence the shearing effect; the rotating speed ratio and the included angle theta are matched, the combined action effect is achieved, and the shearing heat, the shearing efficiency, the shearing granularity and the service life can be considered.
Furthermore, the gap between the large roller and the small roller is 0.01-2 mm, and the size of the rubber powder is correspondingly adjusted according to the requirement of the size of the rubber powder.
Furthermore, the widths of the convex sawteeth and the concave sawteeth are consistent, the heights of the convex sawteeth are consistent with the depths of the concave sawteeth, so that a stable pressure equalizing groove is formed, and stable and uniform product granularity is produced.
Further, the rotation speed ratio of the large roller to the small roller is 8: and 1, combining the determined double-roll diameter ratio, and controlling the heat generated by shearing to the maximum extent on the premise of ensuring the maximum productivity of the rubber powder.
Furthermore, the inner cavities of the large roller and the small roller are externally connected with circulating cooling water, so that heat generated by shearing can be taken away in time, and high-temperature desulfurization and even oxidative degradation of materials can be avoided.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
(1) the utility model discloses a two roller drums of unsmooth zigzag, the combined design of zigzag structure and oblique contained angle theta on two rollers, the mode that rubber between the two sawtooth was cut was smashed in the assurance two roller operation in-process, and avoid traditional mode of rubbing with the hands and grinding, make the rubber powder that obtains mainly with the graininess, moreover, compare in the mode that prior art rubber powder was smashed and was rubbed with the hands and ground, can also reduce the thermal production in the crushing process in the cutting process, guarantee that the temperature that produces can cool off fast, avoid some rubber powder overheated appearance desulfurization state, play unexpected technological effect;
(2) the concave-convex sawtoothed double-roller of the utility model has the one-to-one matching and corresponding relationship of the convex sawteeth and the concave sawteeth when the double rollers rotate, so as to avoid that part of rubber powder is cut by mistake in the cutting process, thereby achieving the purpose of uniformly cutting the rubber powder;
(3) the concave-convex sawtoothed double-roller has the advantages that the concave sawteeth I and the concave sawteeth II form the pressure equalizing grooves when the double rollers rotate to cut materials, so that the rubber powder cut by the sawteeth is extruded into the pressure equalizing grooves and then is leaked out to achieve the effect of stabilizing pressure, and the phenomenon that the powder is heated and desulfurized or even oxidized and degraded due to overlarge local accumulation pressure of the materials is avoided;
(4) the utility model discloses a two roller drums of unsmooth zigzag, under other conditions, for example roller diameter, the oblique contained angle theta etc. certain prerequisite, the rotational speed ratio is bigger, and the heat that the shearing produced is bigger, and the efficiency of cutting mode crocus is higher, and the phase reversal velocity ratio is smaller, and the heat that the shearing produced is smaller, and the efficiency of cutting mode crocus is lower; meanwhile, the larger the rotation speed ratio is, the larger the heat generated by shearing is, the larger the energy consumption of cooling loss through cooling water is, and the lower the utilization rate of the energy is; when the rotation speed ratio is lower, the grinding efficiency of the cutting mode is lower, the generation of rubber powder is too low, and even the rubber powder with the required granularity is difficult to generate; therefore, on the premise of ensuring the maximum productivity of the rubber powder with the required granularity, the rotating speed ratio is (1-12): 1, the heat generated by shearing can be controlled to the maximum extent; the front angles alpha of the convex sawteeth I and the convex sawteeth II in the rotating direction are smaller than the rear angles beta, and the effect is that the convex sawteeth I and the convex sawteeth II collide to generate shearing force;
(5) the concave-convex zigzag double-roller has the advantages that the included angle theta is too small, so that the cutting edge is sharp, the strength is low, the grinding powder is easy to wear when being ground in a cutting mode, and the service life is short; the included angle theta is too large, the cutting edge is wider, the strength is higher, the colloidal particle cutting mode is even difficult to grind the colloidal powder to the required granularity when the colloidal particle is ground by the cutting mode, namely the grinding is difficult, the included angle theta is 5-20 degrees, and the requirements of service life and ground powder granularity can be considered; the oblique directions of the convex sawteeth I and the convex sawteeth II are consistent, so that shearing deviation is avoided, and the shearing efficiency is improved;
(6) the utility model discloses a two roller drums of unsmooth zigzag, the diameter ratio of big roller and small roll is: (1.1-2.2): 1, shearing difference is formed, when the diameter ratio is too large, the service lives of the two rollers are greatly different, the efficiency of combined production is reduced, and when the diameter ratio is too small, tooth grooves are easily meshed to influence the shearing effect; the effect of combination is achieved by matching the rotating speed ratio and the included angle theta, and the shearing heat, the shearing efficiency, the shearing granularity and the service life can be considered;
(7) the concave-convex zigzag double-roller of the utility model correspondingly adjusts the gap between the double rollers according to the granularity requirement;
(8) the concave-convex sawteeth double-roller has the advantages that the widths of the convex sawteeth and the concave sawteeth are consistent, the heights of the convex sawteeth are consistent with the depths of the concave sawteeth, so that stable pressure equalizing grooves are formed, and stable and uniform product granularity is produced;
(9) the utility model discloses a two roller drums of unsmooth zigzag, the rotational speed ratio of big roller and small roll is 8: 1, the optimal rotation speed ratio is combined with the determined double-roller ratio, and the heat generated by shearing is controlled to the maximum extent on the premise of ensuring the maximum capacity of the rubber powder;
(10) the utility model discloses a two roller cylinders of unsmooth zigzag, the external recirculated cooling water of inner chamber of big roller and small roller will cut the heat of production and in time take away, avoid the high temperature desulfurization of material, oxidative degradation even.
Drawings
Fig. 1 is a schematic structural view of a concave-convex zigzag double-roller of the present invention;
FIG. 2 is a top view of the concave-convex zigzag dual-roller of the present invention;
FIG. 3 is an enlarged view of part B of FIG. 1;
fig. 4 is an enlarged view of a portion a of fig. 2.
In the figure: 11. a large roller; 12. a small roller; 16. a roll centerline; 111. convex sawteeth I; 112. concave sawteeth I; 121. convex sawteeth II; 122. concave sawteeth II.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.
Example 1
The concave-convex zigzag double-roller comprises a large roller 11 and a small roller 12 which rotate oppositely in a parallel state as shown in figures 1 and 2; convex sawteeth and concave sawteeth which are in an axial parallel state are arranged on the roll surfaces of the large roll 11 and the small roll 12 in a staggered mode, as shown in fig. 3, the convex sawteeth are I111, the concave sawteeth are I112, the convex sawteeth are II 121, and the concave sawteeth are II 122; as shown in fig. 4, the convex and concave serrations make an oblique angle θ with the roller centerline 16 of the twin roller.
The concave-convex zigzag double-roller can be applied to secondary processing of coarse particles of soft non-metal materials such as plastic particles, rubber particles and wood particles into fine particles, for example, large-particle materials with the diameter of 5-50 mm are processed into small-particle materials with the size of 5-100 meshes. In the concrete use, the combined design of zigzag structure and the inclined contained angle theta on the two rollers, the mode that the material between the two sawtooth of assurance two roller operation in-process cuts is smashed, and avoid the mode that traditional rubbed and rubbed with the hands, make the farine that obtains mainly with the graininess, moreover, compare in the mode that soft non-metallic material of prior art smashed and rubbed with the hands, can also reduce the thermal production of crushing in-process among the cutting process, guarantee that the temperature that produces can cool off fast, avoid partly rubber powder overheated desulfurization or gelatinization state of appearing, thereby play unexpected technological effect.
Example 2
The concave-convex sawtoothed double-roller is further improved on the basis of embodiment 1, when the double rollers rotate, the convex sawteeth and the concave sawteeth are in one-to-one matching corresponding relation of the convex sawteeth I111 and the convex sawteeth II 121, and the concave sawteeth I112 and the concave sawteeth II 122, so that part of materials are prevented from being cut by mistake in the cutting process, and the purpose of uniformly cutting rubber powder is achieved. Also because of the corresponding relation of the two concave saw teeth, the concave saw teeth I112 and the concave saw teeth II 122 form a pressure equalizing groove when the double rollers rotate to cut materials, so that the materials cut by the saw teeth are guaranteed, for example, rubber powder enters the pressure equalizing groove through extrusion and then leaks to achieve the effect of stabilizing pressure, the situation that the materials are locally accumulated and the pressure is too high to cause the temperature rise and desulfurization or carbonization of powder is avoided, and the cut materials are separated from the pressure equalizing groove due to the self gravity and fall into a hopper under the double rollers under the effect of vibration generated by the rotation of the double rollers.
Example 3
The concave-convex zigzag double-roller is further improved on the basis of embodiment 2, and the rotating speed ratio of the large roller 11 to the small roller 12 is 1-12: 1, under other conditions, such as certain conditions of roller diameter, oblique included angle theta and the like, the larger the rotation speed ratio is, the larger the heat generated by shearing is, the higher the efficiency of the cutting mode for grinding powder is, and the smaller the reverse rotation speed ratio is, the smaller the heat generated by shearing is, and the lower the efficiency of the cutting mode for grinding powder is; meanwhile, the larger the rotation speed ratio is, the larger the heat generated by shearing is, the larger the energy consumption of cooling loss through cooling water is, and the lower the utilization rate of the energy is; when the rotation speed ratio is lower, the milling efficiency of the cutting mode is lower, the yield of the rubber powder is too low, and the rubber powder with the required granularity is difficult to generate; therefore, on the premise of ensuring the maximum productivity of the rubber powder with the required granularity, the rotating speed ratio is 1-12: 1, the heat generated by shearing can be controlled to the maximum extent; as shown in fig. 3, the front angle α of each of the convex saw teeth i 111 and ii 121 in the rotation direction is smaller than the rear angle β, which has the effect that the collision of the convex saw teeth i 111 and ii 121 generates a shearing force.
Example 4
The concave-convex zigzag double-roller is further improved on the basis of the embodiment 3, the included angle theta is 5-20 degrees, and if the included angle theta is too small, the cutting edge is sharp, the strength is low, and the roller is easy to wear when being milled by a cutting mode, so that the service life is short; if the included angle theta is too large, the cutting edge is wider, the strength is higher, the colloidal particle cutting mode is even difficult to grind the colloidal particle into the colloidal powder with the required granularity when the colloidal particle is ground in the cutting mode, namely the grinding is difficult, the included angle theta is 5-20 degrees, and the requirements of service life and ground particle size can be considered; the oblique direction of convex sawtooth I111 and convex sawtooth II 121 is consistent, so that shearing deviation is avoided, and shearing efficiency is improved.
Example 5
The concave-convex zigzag double-roller is further improved on the basis of the embodiment 4, and the diameter ratio of the large roller 11 to the small roller 12 is as follows: 1.1-2.2: 1, shearing difference is formed, when the diameter ratio is too large, the service lives of the two rollers are greatly different, the efficiency of combined production is reduced, and when the diameter ratio is too small, tooth grooves are easily meshed to influence the shearing effect; the rotating speed ratio and the included angle theta are matched, the combined action effect is achieved, and the shearing heat, the shearing efficiency, the shearing granularity and the service life can be considered.
Example 6
The concave-convex zigzag double-roller is further improved on the basis of the embodiment 2, the gap between the large roller 11 and the small roller 12 is 0.01-2 mm, and the gap is adjusted correspondingly according to the particle size. The widths of the convex sawteeth and the concave sawteeth are consistent, the heights of the convex sawteeth are consistent with the depths of the concave sawteeth, so that a stable pressure equalizing groove is formed, and stable and uniform product granularity is produced; the internal cavities of the big roller 11 and the small roller 12 are externally connected with circulating cooling water, so that heat generated by shearing can be taken away in time, and high-temperature desulfurization and even oxidative degradation of materials can be avoided.
Example 7
The concave-convex zigzag double-roller is further improved on the basis of the embodiment 6, the rotating speed of the large roller 11 is 260-620 r/min, the rotating speed of the small roller 12 is 25-86 r/min, and the gap between the double rollers is 0.01-2 mm; the diameter of the large roller is 450-830 mm, and the diameter of the small roller is 380-720 mm; the included angle theta is 5-20 degrees; the grain diameter of the rubber powder obtained by grinding in a cutting mode is 5-100 meshes; the method can be applied to secondary cutting type crushing of rubber particles, and in the embodiment, the test data in the table 1 are respectively adopted and the data of comparison test samples I, II, III and IV are collected:
TABLE 1 comparison of test data for test samples one, two, three and four
As can be seen from Table 1, the rubber powder prepared by the test sample four has better production effects in the aspects of particle shape, capacity, material temperature, particle size and the like, the comprehensive index is the best, and the rotating speed ratio of the large roller to the small roller is proved to be 8: 1 is the optimum rotation speed ratio.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the present invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solutions, but shall fall within the protection scope of the present invention.
Claims (10)
1. A unsmooth two roller drums of zigzag, its characterized in that: comprises a big roller (11) and a small roller (12) which rotate oppositely in a parallel state; convex sawteeth and concave sawteeth which are in an axial parallel state are arranged on the roll surfaces of the large roll (11) and the small roll (12) in a staggered mode, wherein the convex sawteeth are convex sawteeth I (111), concave sawteeth I (112), convex sawteeth II (121) and concave sawteeth II (122); the convex and concave sawteeth form an oblique included angle theta with a roller central line (16) of the double roller.
2. A twin roll drum with concave-convex saw-teeth as claimed in claim 1, wherein the concave-convex saw-teeth are in one-to-one matching relationship of the convex saw-teeth i (111) and the convex saw-teeth ii (121) and the concave saw-teeth i (112) and the concave saw-teeth ii (122) when the twin roll is rotated.
3. A twin roll drum with concave-convex saw-teeth as claimed in claim 2, wherein the concave saw-teeth i (112) and the concave saw-teeth ii (122) form pressure equalizing grooves when cutting the material while the twin roll is rotating.
4. A concavo-convex serrated twin-roll drum as claimed in claim 3, wherein: the rotating speed ratio of the large roller (11) to the small roller (12) is (1-12): 1; and the front angle alpha of each convex sawtooth I (111) and the front angle alpha of each convex sawtooth II (121) in the rotating direction are smaller than the rear angle beta.
5. A concavo-convex serrated twin-roll drum as claimed in claim 3, wherein: the included angle theta is 5-20 degrees; the oblique directions of the convex sawteeth I (111) and the convex sawteeth II (121) are consistent.
6. A concavo-convex serrated twin-roll drum as claimed in claim 3, wherein: the diameter ratio of the large roller (11) to the small roller (12) is as follows: (1.1-2.2): 1.
7. a concavo-convex serrated twin-roll drum as claimed in claim 3, wherein: the clearance between the big roller (11) and the small roller (12) is 0.01-2 mm.
8. The embossing twin roll drum as claimed in any one of claims 1 to 7, wherein: the widths of the convex sawteeth and the concave sawteeth are consistent, and the heights of the convex sawteeth and the concave sawteeth are consistent.
9. The embossing twin roll drum as set forth in claim 8, wherein: the rotation speed ratio of the large roller (11) to the small roller (12) is 8: 1.
10. the embossing twin roll drum as set forth in claim 8, wherein: and the inner cavities of the large roller (11) and the small roller (12) are externally connected with circulating cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920503522.1U CN209810295U (en) | 2019-04-12 | 2019-04-12 | Concave-convex zigzag double-roller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920503522.1U CN209810295U (en) | 2019-04-12 | 2019-04-12 | Concave-convex zigzag double-roller |
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| CN209810295U true CN209810295U (en) | 2019-12-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999951A (en) * | 2019-04-12 | 2019-07-12 | 安徽世界村智能装备有限公司 | A kind of bumps zigzag double roller roller |
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2019
- 2019-04-12 CN CN201920503522.1U patent/CN209810295U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999951A (en) * | 2019-04-12 | 2019-07-12 | 安徽世界村智能装备有限公司 | A kind of bumps zigzag double roller roller |
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